Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]: Basis of Accounting, Policy [Policy Text Block] (Policies)	6 Months Ended
Jun. 30, 2017
Policies
Basis of Accounting, Policy	The unaudited Condensed Consolidated Financial Statements have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X and, therefore, do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The unaudited Condensed Consolidated Financial Statements include the accounts of IHC and its consolidated subsidiaries. All significant intercompany transactions have been eliminated in consolidation. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect: (i) the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements; and (ii) the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. IHC’s annual report on Form 10-K as filed with the Securities and Exchange Commission should be read in conjunction with the accompanying unaudited Condensed Consolidated Financial Statements. In the opinion of management, all adjustments (consisting only of normal recurring accruals) that are necessary for a fair presentation of the consolidated financial position and results of operations for the interim periods have been included. The condensed consolidated results of operations for the three months and six months ended June 30, 2017 are not necessarily indicative of the results to be anticipated for the entire year.

Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]: Basis of Accounting, Policy [Policy Text Block] (Policies)

6 Months Ended

Jun. 30, 2017

Policies

Basis of Accounting, Policy

The unaudited Condensed Consolidated Financial Statements have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X and, therefore, do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The unaudited Condensed Consolidated Financial Statements include the accounts of IHC and its consolidated subsidiaries. All significant intercompany transactions have been eliminated in consolidation. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect: (i) the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements; and (ii) the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. IHC’s annual report on Form 10-K as filed with the Securities and Exchange Commission should be read in conjunction with the accompanying unaudited Condensed Consolidated Financial Statements.

In the opinion of management, all adjustments (consisting only of normal recurring accruals) that are necessary for a fair presentation of the consolidated financial position and results of operations for the interim periods have been included. The condensed consolidated results of operations for the three months and six months ended June 30, 2017 are not necessarily indicative of the results to be anticipated for the entire year.